说明：  介绍了自动交换光网络(ASON) 出现的技术背景,并针对ASON的体系结构,着重描述了其具有特色的3 个平面和3 种连接的概念。 然后对ASON所引入的控制平面的功能需求、结构组件、接口模块和信令协议进行了论述。最后,简要介绍了ASON协议的标准化进 程以及ASON在未来光网络中的应用
(Introduction of Automatic Switched Optical Network (ASON) technical background, and against the ASON architecture, focusing on description of its unique 3-plane and the concept of three kinds of connections. And then introduced to the ASON control plane functional requirements, structural components, interface modules and signaling protocols are discussed. Finally, a brief introduction of ASON standardization process and the agreement ASON optical network in the future application)